Sawing-machine.



G. BOHM/ SAWING MACHINE.

APPLICATION FILED 313.21. 1905.

PATENTED JULY 17, 1906.

3 SHEETS-SHEET 2.

PATBNTED JULY 17, 1906.

O. BOHM. SAWING MACHINE.

APPLICATION FILED FEB. 21, 1905. I

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CHARLES BOHM, OF DU BOIS, NEBRASKA.

SAWING-MACHINE.

Specification of Letters Patent.

Patented July 17, 1906.

Application filed February 21, 1905. Serial No, 246,700.

To ctZL whom it may concern.-

Be it known that I, CHARLES BoHM, a citizen of the United States, residing at Du Bois,.

in the county of Pawnee and State of Nebraska, have invented certain new and useful Improvements in Sawing-Machines, of which the following is a specification.

My invention relates to sawing-machines, and especially to sawing-machines provided with circular saws arranged for the sawing of wood for fuel and the like.

Theobject of my invention is to provide a sawing-machine mounted upon a vehicle upon which it may be transported from place to place and to serve as a frame upon which the saw is operated.

A further object of my invention is to provide a sawing-machine arranged for operation by a horse-power and upon which the horse-power and couplings may be transported.

A further object of my invention is to provide a sawing-machine which comprises means for conveniently multiplying the rotary motion of the tumbling-rod without the use of a separate jack ordinarily used.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accomp anying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, propor' tion, size, and minor details may be made within the scope of the claim without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a perspective view of my improved sawing-machine coupled to a horse-power and inoperative position. Fig. 2 is a top plan view of my improved sawing-machine with the several parts of the horse-power disposed thereon for transportation. Fig. 3 is a view of my improved sawing-machine in side elevation. Fig. 4 is a top plan view of the slidable framework or jack with the pulleyand brake-wheel mounted thereon. Fig. 5 is a view in end elevation of the slidable frame with the frame of the vehicle shown in section. Fig. 6 is a top plan view of a modified form of jack for my improved sawing-machine provided with a spurwheel and pinion for still further increasing the feed of the saw.

Like characters of reference designate corresponding parts throughout the several views.

In its preferred embodiment my improved sawing-machine is mounted upon a vehicle, as the frame 1, mounted upon the wheels 2. The frame 1 extends rearwardly of the rear wheels, and thereon is mounted an upstanding frame 3, provided at its upper ends with bearings 4, in which is mounted a saw-arbor 5. The arbor 5 is provided with the usual circular saw 6, balance-disk 7, and pulley 8. A tilting work-table 9, of any approved form, may also be mounted. for use in-conjunction with the saw. Upon the frame 1, intermediate the wheels, is mounted the jack, (shown in Figs. 4, 5, and 6,) by means of clips 10, secured to the frame 1 and slidably embracing the frame-piecesll of the jack. The jack comprises frame-pieces 12, extending transversely beyond one side of the frame 1, upon which is mounted lateral frame-pieces 13, to which are secured bearings 14. Within the bearings 14 is mounted a shaft 15 with an. outwardly-extended angular end 16 to serve as a coupling for the tumbling-rod. Upon the shaft 15 is mounted'a pulley 17 in alinement with the pulley 8, and a belt 18 is disposed to transmit a rotary motion from the pulley 17 to the pulley 8. Upon the shaft 15 is also mounted a brake-wheel 19. A brake 20 is hinged to one of the frame-pieces 12 by means of ears 21 and is disposed to bear against the brake-wheel 19. A bell-crank lever 22 is pivoted to the opposite frame-piece 12, as by the clip 23, with one end pivotally connected with the brake 20. At any point adjacent the saw a lever 24 is mounted with a rod 25 extending from the lever to the bellcrank lever 2 and provided with a turnbuckle 26 for varying the length of the rod 25. A bolt 27 passes through one of frame-pieces 12 and a frame-piece 28, rigidly secured transversely of the frame 1. A nut 29 is disposed upon the bolt 27 and arranged to slidably move the frame of the jack longitudinally of the frame 1 to tighten the belt 18. A horse-power 30 of any approved form may be operatively connected with the shaft 15 by means of the tumbling-rod 31 and the angular shank 16.

The operation of my improved sawing-machine is as follows: For convenience in transportation the horse power 30 may be knocked down and, together with the tumbling-rod 31, loaded upon the platform of the vehicle, as shown in plan in Fig. 2. When it is desired to operate the sawing-machine, the rear wheels are dropped into depressions in the ground, as indicated in Fig. 1, thus bringing the saw and arbor to a height convenient for use. The horse-power is set up and properly connected, as shown in Fig. 1, and with the parts assembled as therein shown the rotation of the sweep of the horse-power will produce the desired rotation of the saw 6. When by reason of accident or when it is desired for any other reason to stop the saw, the manipulation of the lever 24, conveniently disposed, will produce frictional contact of the brake-shoe 20 with the brake wheel 19 and bring the saw and horse-power to a stop.

Having thus described my invention, what I claim as novel, and desire to secure by Letters Patent, is

In a device of the character described, the combination with a wheeled frame, of a circular sawrotatably mounted upon said frame,

an adjustable frame slidably disposed upon said Wheeled frame, a shaft rotatably mounted in said adjustable frame, a pulley upon said shaft, a pulley upon the saw-shaft, a belt connecting said pulleys, a brake-wheel mounted upon the shaft which is journaled in the adjustable frame, a brake adapted to engage said brake-wheel, a lever located adjacent the saw-shaft, connections between said lever and said brake, means for adjusting the 'adjustable frame upon the wheeled frame, and for holding said adjustable frame in position, a rotative member adapted to be actuated by a horse-power and a tumbling-rod which connects said rotative member with the shaft upon which the brake-wheel is mounted.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES BOHM.

WVitnesses AUGUST KORBER, JOHN BOHM. 

